Average annual temperature is 12.0 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 237 days
Number of rainy days: 115 days
Number of snow days: 13 days
Look at detailed online map of Gölcük
* Weather data for Gölcük Turkey is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.3 | 17.8 | 18.6 | 22.6 | 27.5 | 29.2 | 36.0 | 38.8 | 32.4 | 24.5 | 22.9 | 17.0 |
| Average daytime temperature (°C) | 8.1 | 4.5 | 12.8 | 15.7 | 20.4 | 23.5 | 29.4 | 33.9 | 26.6 | 21.3 | 16.1 | 11.2 |
| Average temperature (°C) | 1.7 | -1.3 | 6.9 | 9.3 | 13.8 | 17.5 | 22.2 | 26.1 | 18.9 | 14.1 | 9.2 | 5.0 |
| Average night temperature (°C) | -2.8 | -6.3 | 1.6 | 3.0 | 7.2 | 11.6 | 14.3 | 18.2 | 11.8 | 8.4 | 3.7 | 0.6 |
| Absolute minimum temperature (°C) | -5.9 | -18.3 | -6.0 | -3.9 | 0.0 | 8.2 | 9.1 | 12.9 | 6.0 | 4.5 | -6.3 | -4.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 8.1 | 8.4 | 8.4 | 10.2 | 12.3 | 12.4 | 13.4 | 12.5 | 11.2 | 9.5 | 8.3 | 7.3 |
| Precipitation (mm) | 26 | 25 | 72 | 92 | 51 | 88 | 2 | 0 | 2 | 35 | 20 | 20 |
| Sunny days | 25 | 17 | 12 | 7 | 12 | 10 | 29 | 29 | 27 | 25 | 22 | 22 |
| Rainy days | 4 | 2 | 18 | 23 | 19 | 20 | 2 | 2 | 3 | 6 | 7 | 9 |
| Snow days | 2 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at